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130304231 is a prime number
BaseRepresentation
bin1111100010001…
…00100011100111
3100002012010210122
413301010203213
5231324213411
620532512155
73141365501
oct761044347
9302163718
10130304231
116760a552
123777b65b
1320cc40c5
141343cd71
15b68d9db
hex7c448e7

130304231 has 2 divisors, whose sum is σ = 130304232. Its totient is φ = 130304230.

The previous prime is 130304227. The next prime is 130304267. The reversal of 130304231 is 132403031.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (132403031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130304231 - 22 = 130304227 is a prime.

It is a super-2 number, since 2×1303042312 = 33958385233002722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130304281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65152115 + 65152116.

It is an arithmetic number, because the mean of its divisors is an integer number (65152116).

Almost surely, 2130304231 is an apocalyptic number.

130304231 is a deficient number, since it is larger than the sum of its proper divisors (1).

130304231 is an equidigital number, since it uses as much as digits as its factorization.

130304231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 130304231 is about 11415.0878665037. The cubic root of 130304231 is about 506.9745664784.

Adding to 130304231 its reverse (132403031), we get a palindrome (262707262).

The spelling of 130304231 in words is "one hundred thirty million, three hundred four thousand, two hundred thirty-one".